A device is provided that integrates a plurality of inductors in parallel. The device includes a plurality of windings and a magnetic core structure. A number of the windings corresponds to a number of the inductors. The magnetic core structure includes a plurality of windows, wherein each window includes at least two windings coupled with each other. When a phase difference of the voltage phases is smaller than a predetermined value, voltage phases of two terminals of any two of the windings within the same window are substantially the same.
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2. The device of claim 1 , wherein the winding currents in the different windows have the same current direction, and the voltage phase difference is larger than the predetermined value dΦ max .
The device, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, is further characterized by the winding currents in different windows having the same current direction. The voltage phase difference between the windings must also be larger than a predetermined maximum value (dΦ max). This arrangement affects the overall electromagnetic behavior and is a specific configuration for controlling current and voltage relationships within the parallel inductor structure.
3. The device of claim 1 , wherein the magnetic core structure comprises at least one shared core part between two neighboring windows.
The device, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, is further characterized by the magnetic core structure having at least one core segment shared between two adjacent windows. This shared core segment facilitates magnetic flux linkage between these neighboring inductors, influencing their mutual inductance and overall performance of the integrated inductor assembly.
4. The device of claim 3 , wherein a main flux is generated by the winding in each window, and a first magnetic resistance of the main flux located in the shared core part is smaller than a second magnetic resistance of the main flux located in the other core part rather than the shared core part.
The device, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, and includes a shared core segment between adjacent windows, is designed such that each winding generates a main magnetic flux in each window. The magnetic resistance encountered by this main flux within the shared core section is lower than the magnetic resistance encountered in other parts of the core structure. This design encourages flux concentration and efficient magnetic coupling between the windings sharing that core segment.
5. The device of claim 4 , wherein the shared core part comprises a magnetic material, of which the magnetic permeability is larger than that of the other core part.
The device described, which integrates multiple inductors in parallel, features windings, a magnetic core with windows (each containing at least two coupled windings with similar voltage phases under a specific threshold), a shared core section between adjacent windows, and a configuration where the main magnetic flux experiences lower resistance in the shared core than elsewhere. The shared core part comprises a magnetic material with a higher magnetic permeability than the rest of the core. This difference in permeability further concentrates the magnetic flux in the shared region, enhancing coupling between the inductors.
6. The device of claim 1 , wherein axes of the windows of the magnetic core structure are either parallel or vertical to each other.
The device, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, has its magnetic core windows arranged such that the axes of these windows are either parallel or perpendicular to each other. This specific geometric arrangement is relevant to how the magnetic flux interacts between the different inductors and influences the overall physical layout and electromagnetic behavior of the device.
7. The device of claim 1 , wherein the winding comprises a copper sheet, a litz wire, a PCB winding, a circular conductor wire or a bunched conductor.
The device, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, specifies that the windings can be made of various conductor types. Specifically, the winding can be implemented using a copper sheet, a litz wire, a PCB winding (traces on a printed circuit board), a circular conductor wire, or a bunched conductor (multiple wires bundled together). The choice of winding material affects current carrying capacity, losses, and high-frequency performance.
10. The power converter of claim 9 , wherein the winding currents in the different windows have the same current direction, and the voltage phase difference is larger than the predetermined value dΦ max .
The power converter, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, is further characterized by the winding currents in different windows having the same current direction. The voltage phase difference between the windings must also be larger than a predetermined maximum value (dΦ max). This arrangement affects the overall electromagnetic behavior and is a specific configuration for controlling current and voltage relationships within the parallel inductor structure, specifically within the context of a power converter.
11. The power converter of claim 9 , wherein the magnetic core structure comprises at least one shared core part between two neighboring windows.
The power converter, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, is further characterized by the magnetic core structure having at least one core segment shared between two adjacent windows. This shared core segment facilitates magnetic flux linkage between these neighboring inductors, influencing their mutual inductance and overall performance of the integrated inductor assembly, specifically within the context of a power converter.
12. The power converter of claim 11 , wherein a main flux is generated by the winding in each window, and a first magnetic resistance of the main flux located in the shared core part is smaller than a second magnetic resistance of the main flux located in the other core part rather than the shared core part.
The power converter, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, and includes a shared core segment between adjacent windows, is designed such that each winding generates a main magnetic flux in each window. The magnetic resistance encountered by this main flux within the shared core section is lower than the magnetic resistance encountered in other parts of the core structure. This design encourages flux concentration and efficient magnetic coupling between the windings sharing that core segment, specifically within the context of a power converter.
13. The power converter of claim 12 , wherein the shared core part comprises magnetic material, of which the magnetic permeability is larger than that of the other core part.
The power converter described, which integrates multiple inductors in parallel, features windings, a magnetic core with windows (each containing at least two coupled windings with similar voltage phases under a specific threshold), a shared core section between adjacent windows, and a configuration where the main magnetic flux experiences lower resistance in the shared core than elsewhere. The shared core part comprises a magnetic material with a higher magnetic permeability than the rest of the core. This difference in permeability further concentrates the magnetic flux in the shared region, enhancing coupling between the inductors, specifically within the context of a power converter.
14. The power converter of claim 9 , wherein axes of the windows of the magnetic core structure are either parallel or vertical to each other.
The power converter, which integrates multiple inductors in parallel using multiple windings and a magnetic core structure with windows where each window contains at least two coupled windings with substantially the same voltage phases when their phase difference is below a certain threshold, has its magnetic core windows arranged such that the axes of these windows are either parallel or perpendicular to each other. This specific geometric arrangement is relevant to how the magnetic flux interacts between the different inductors and influences the overall physical layout and electromagnetic behavior of the device, specifically within the context of a power converter.
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April 8, 2016
May 16, 2017
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